ゆうばり がた護衛 ごえう かんであれば
yūbarigata goeukandeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of ゆうばり型護衛艦

1. If it were a Yubari-class destroyer; Assuming it is a Yubari-class destroyer

Ba Conditional